Enrollment
351
New York · 2024-25 NCES data
Other / mixed grade configuration · Yonkers, NY
Montessori School 31
Federal NCES profile for Montessori School 31, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 20/100.
2024-25 NCES dataOther / mixed grade configurationNCES 363192001527
👥 S:T ratio 30
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Montessori School 31 earns 20/100 on the Resource Investment Index, with class sizes larger than 96% of New York schools.
- #16 of 33
- schools in Yonkers · Resource Index
- 20
- Resource Index · Lower
- 17.6:1
- large classes for New York
- 55.1%
- free-lunch eligible
Montessori School 31 has class sizes larger than 96% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Montessori School 31 ranks #16 of 33 schools in Yonkers, NY.
School address
District: Yonkers City School District · New York
NCES ID 363192001527 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
17.6:1
vs 11.8:1 New York avg
+49% vs state
Free-lunch eligible
55.1%
vs 56.2% New York avg
-2% vs state
Student-teacher ratio in context
How Montessori School 31 compares with New York and U.S. medians
What stands out at Montessori School 31
Montessori School 31 is a higher-need, mid-sized combined-grade school in Yonkers, New York, enrolling 351 students.
Class loads run heavy: 17.6:1 is larger than about 96% of New York schools and 49% above the 11.8:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 55.1% lands close to the New York typical range, neither a high- nor low-need campus by this measure.
With 351 students, its enrollment sits close to the New York median campus size.
Its Resource Investment Index trails 96% of the 4,801 New York schools with a score on record, one of the lower results on this measure.
Among 716 similarly sized, similarly resourced-need New York schools statewide, it ranks #692, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (57%) and White (17%) (diversity index 62/100).
Chronic absenteeism is elevated: 50.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Yonkers City School District also operates Yonkers Montessori Academy (1,234 students) and Lincoln High School (1,176 students) alongside Montessori School 31.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Montessori School 31 compares
Montessori School 31 on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.6:1 | ▲ 49% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 55.1% | ▼ 2% | 56.2% | 51.7% |
| Enrollment | 351 | top 65% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.6:1
Leaner classes than 27% of US schools, heavier class loads than most.
351
Bigger than 40% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
55.1%
free-lunch eligible
- 2% below the New York average of 56.2%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
17.6:1
students per teacher
- 49% above state mean
Top 96% in New York - lower ratio than 4% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
50.1%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$25,994
per pupil, district-wide
- below New York avg of $26,410
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 4 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.1 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 56.7%
White 16.8%
African American 16.2%
Asian 6.3%
Two or More 3.4%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: Hispanic or Latino at 56.7% of enrollment.
Student-body diversity index 61.9/100
Simpson diversity index - at 61.9, Montessori School 31 is more mixed than the New York school average of 45.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Yonkers City School District, which includes Montessori School 31.
$25,994
Per student
-2%
vs New York
Avg $26,410
+57%
vs U.S.
Avg $16,593
Revenue mix
Local 33.8%
State 52.4%
Federal 13.9%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Montessori School 31 Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Yonkers Montessori Academy | Larger | Similar economic need | Lower S:T ratio |
| Lincoln High School | Larger | Higher economic need | Similar S:T ratio |
| Yonkers High School | Larger | Higher economic need | Similar S:T ratio |
| Roosevelt High School - Early College Studies | Larger | Higher economic need | Lower S:T ratio |
| Gorton High School | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Montessori School 31's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,234
- Students per teacher
- 14.7:1
- Resource Index
- 27/100
- Enrollment
- 1,176
- Students per teacher
- 16.6:1
- Resource Index
- 26/100
- Enrollment
- 1,111
- Students per teacher
- 16.3:1
- Resource Index
- 20/100
- Enrollment
- 1,096
- Students per teacher
- 15.7:1
- Resource Index
- 28/100
- Enrollment
- 1,068
- Students per teacher
- 14.8:1
- Resource Index
- 25/100
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~351 students)
Similar student-teacher ratio (~17.6:1)
Next steps
Verify locally before acting on Montessori School 31's federal record.
- Compare Montessori School 31 against another school. Compare schools
- Yonkers City School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Montessori School 31
How many students attend Montessori School 31?
Montessori School 31 has 351 students enrolled. It is a public school in Yonkers, NY.
What is the student-teacher ratio at Montessori School 31?
The student-teacher ratio at Montessori School 31 is 17.6:1, which is 49% higher than the New York average of 11.8:1 and 12% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Montessori School 31?
55.1% of students at Montessori School 31 are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Montessori School 31?
The largest demographic group at Montessori School 31 is Hispanic or Latino at 56.7% of enrollment, in Yonkers, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.9/100.
What is the Resource Investment Index for Montessori School 31?
Montessori School 31 has a Resource Investment Index of 20/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Montessori School 31 rank among schools in Yonkers?
By Resource Investment Index, Montessori School 31 ranks #16 of 33 schools in Yonkers, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Yonkers on the city page.
Is Montessori School 31 a good school?
Montessori School 31 earns 20/100 on the Resource Investment Index, with class sizes larger than 96% of New York schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Yonkers City School District?
Besides Montessori School 31, Yonkers City School District also operates Yonkers Montessori Academy (1,234 students), Lincoln High School (1,176 students), and Yonkers High School (1,111 students). See the Yonkers City School District district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.